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We explore how meeting members modify their responses to feedback according to the feedback modality and who receives the feedback. We conducted a field study and compared four feedback conditions: three using vibrotactile modality (chair vibration) and one using visual modality (spotlight flashing). The three vibrotactile conditions differ in the feedback recipients: potential speaker (a member whom other members would like to hear speak next, or a member who is willing to speak next), current speaker, and all members. Regarding the modality, the vibrotactile modality provided a moderate level of distraction of members (while the visual modality was low enough to be ignored) and led to more turn-taking than the visual modality. Regarding the recipients, members felt more positively about feedback when potential speaker, rather than current speaker, received feedback. Also members resulted in more turn-taking when all members or current speaker, rather than potential speaker, received feedback.